By using such a large diagonal, the digital magnification is increased, although the optical magnification is comparable to the Smartzoom magnification.
If we only compare the optical magnifications without considering the sensor and display diagonal, we get following comparison.
Magnification Range Comparison (without considering the sensor and display diagonal)
(1.)
Leica PlanAPO FOV 43.75 | 0.17x - 2.80x |
ZEISS PlanAPO 0.5x | 0.28x - 2.80x |
(2.)
Leica PlanAPO FOV 12.55 | 0.61x - 9.75x |
ZEISS PlanAPO 1.6x | 0.835x - 8.35x |
(3.)
Leica PlanAPO FOV 3.60 | 2.13x - 33.995x |
ZEISS PlanAPO 5x | 2.5x - 25x |
If DVM 6 would be displayed with on the Smartzoom Monitor (445 mm display diagonal), we would get following digital magnifications
(1.)
Leica PlanAPO FOV 43.75 | 10.17x - 162.74x |
ZEISS PlanAPO 0.5x | 11.32x - 113x |
445 mm / 7.649 mm * 0.1748 = 10.17x
445 mm / 7.649 mm * 2.7973 = 162.74x
(2.)
Leica PlanAPO FOV 12.55 | 35.43x - 567.23x |
ZEISS PlanAPO 1.6x | 33.78x - 337x |
445 mm / 7.649 mm * 0.609 = 35.43x
445 mm / 7.649 mm * 9.751 = 567.23x
(3.)
Leica PlanAPO FOV 3.6 | 123.6x - 1977x |
ZEISS PlanAPO 1.6x | 101x - 1011x |
445 mm / 7.649 mm * 2.125 = 123.6x
445 mm / 7.649 mm * 33.995 = 1977x
Formula to calculate the digital magnification:
Magnification = Viewport Diagonal / Sensor Diagonal * Maximum Magnification Optical Zoom * Magnification Objective Lens
E.g.
ZEISS Smartzoom 5:
445 mm / 11 mm * 5 * 5 = 1011x Magnification
See also: http://forums.zeiss.com/microscopy/comm ... php?t=1699
E.g.
Leica DVM 6:
OnSemi CMOS sensor MT9J003 with 7.649 mm sensor diagonal
PlanAPO FOV 43.75:
7.649 mm / 43.75 mm = 0.1748 magnification at lowest optical zoom
0.1748 * 16 = 2.7973 magnification with 16x optical zoom